html {
  box-sizing: border-box;
}

*,
*:before,
*:after {
  box-sizing: inherit;
  margin: 0;
  padding: 0;
}

body {
  background: #d9effd;
  background-image: linear-gradient(90deg, rgba(0, 0, 0, 0) 40%, #aacce2 40%);
  background-size: 25px 60px;
}
body ul {
  list-style: none;
}

.wrapper div {
  position: absolute;
}
.wrapper::before {
  content: "";
  position: absolute;
  z-index: 1;
  width: 100%;
  height: 68px;
  bottom: 0;
  background: #e2aabe;
  border-top: 9px solid #ae758a;
}
.wrapper .desk {
  width: 990px;
  height: 100%;
  margin: auto;
  position: inherit;
}
.wrapper .desk .table {
  position: absolute;
  bottom: 33px;
  z-index: 1;
  width: 898px;
  height: 297px;
  margin-left: 92px;
  transition: margin-left 1s;
}
.wrapper .desk .table::after, .wrapper .desk .table::before {
  content: "";
  position: absolute;
}
.wrapper .desk .table::before {
  background-color: #e0ceb8;
  width: 31px;
  height: 100%;
}
.wrapper .desk .table::after {
  background-color: #ccbdac;
  width: 100%;
  height: 21px;
  box-shadow: 0 1px 7px 0 #958a7e;
}
.wrapper .desk .table .r-tb {
  position: absolute;
  right: 0;
  width: 233px;
  height: 274px;
  padding: 23px 0 0 20px;
  background-color: #e0ceb8;
}
.wrapper .desk .table .r-tb::after {
  content: "";
  position: absolute;
  width: 100%;
  height: 5px;
  bottom: -4px;
  background-color: #ca98ab;
  border-radius: 100%;
  right: 1px;
}
.wrapper .desk .table .r-tb span {
  position: relative;
  padding: 2px;
  border: 2px solid #bbaa95;
  width: 205px;
  height: 70px;
  margin-top: 10px;
  display: block;
}
.wrapper .desk .table .r-tb span::before, .wrapper .desk .table .r-tb span::after {
  position: absolute;
  content: "";
}
.wrapper .desk .table .r-tb span::before {
  background-color: #cebca7;
  inset: 2px;
}
.wrapper .desk .table .r-tb span::after {
  background-color: #fff;
  width: 69px;
  height: 15px;
  left: 73px;
  top: 18px;
  border-radius: 15px 15px 0 0;
  border-bottom: 2px solid #9b8b77;
}
.wrapper .desk .table .router {
  background-color: #424242;
  position: absolute;
  width: 84px;
  height: 20px;
  top: -22px;
  left: 20px;
}
.wrapper .desk .table .router::before, .wrapper .desk .table .router::after {
  position: absolute;
  content: "";
  background: #424242;
  width: 16px;
  height: 2px;
  top: 20px;
  right: 5px;
}
.wrapper .desk .table .router::after {
  right: inherit;
  left: 5px;
}
.wrapper .desk .table .router ul {
  position: absolute;
  width: 4px;
  height: 31px;
  top: -35px;
  perspective: 19px;
  left: 6px;
}
.wrapper .desk .table .router ul::before, .wrapper .desk .table .router ul::after {
  position: absolute;
  content: "";
  background-color: #424242;
}
.wrapper .desk .table .router ul::before {
  width: 100%;
  height: 100%;
  transform: rotateX(45deg);
  outline: 1px solid transparent;
}
.wrapper .desk .table .router ul::after {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  left: -2px;
  top: 2px;
}
.wrapper .desk .table .router ul li {
  position: absolute;
  width: 4px;
  height: 4px;
  background-color: #fff;
  top: 43px;
}
.wrapper .desk .table .router ul li:first-child {
  border-radius: 50%;
}
.wrapper .desk .table .router ul li:first-child::before, .wrapper .desk .table .router ul li:first-child::after {
  position: absolute;
  content: "";
  width: 4px;
  height: 4px;
  background-color: #fff;
  left: 6px;
  border-radius: 50%;
}
.wrapper .desk .table .router ul li:first-child::before {
  left: 12px;
}
.wrapper .desk .table .router ul li:first-child i {
  width: 4px;
  height: 4px;
  background-color: #fff;
  left: 6px;
  border-radius: 50%;
  left: 18px;
  position: absolute;
}
.wrapper .desk .table .router ul li:last-child {
  width: 8px;
  height: 8px;
  left: 65px;
  top: 41px;
}
.wrapper .desk .table .imac {
  z-index: 0;
  margin-top: -274px;
  margin-left: 149px;
  width: 289px;
  height: 175px;
  background-color: #5e5e5e;
  border: 10px solid #fff;
  border-bottom: 41px solid #fff;
  border-radius: 5px;
  transition: margin-left 1s;
}
.wrapper .desk .table .imac::after {
  position: absolute;
  content: "";
  width: 50px;
  height: 26px;
  top: 216px;
  left: 104px;
  background-color: #aeaeae;
  border: 20px solid #d9effd;
  border-top: 0;
  border-bottom: 20px solid #fff;
  border-radius: 5px;
  box-shadow: 0 4px 0 -2px #909090;
}
.wrapper .desk .table .imac .note {
  position: absolute;
  width: 31px;
  height: 21px;
  background-color: #f9ec3e;
  bottom: -33px;
  border-top: 6px solid #cac222;
  font-size: 11px;
  text-align: center;
  padding-top: 7px;
  transform: rotate(-12deg);
  box-shadow: 0 1px 2px #dcdcdc;
}
.wrapper #shelf {
  top: 30px;
  right: 5%;
  width: 272px;
  float: right;
  padding: 0 30px;
}
.wrapper #shelf::before, .wrapper #shelf::after {
  content: "";
  position: absolute;
  width: 100%;
  height: 15px;
  transform: skew(20deg);
  background-color: #79a8c5;
  bottom: -23px;
  left: 2px;
}
.wrapper #shelf::before {
  bottom: -15px;
  right: 2px;
}
.wrapper #shelf div {
  height: 8px;
  width: 100%;
  position: absolute;
  bottom: -8px;
  background-color: #fff;
  right: 1px;
}
.wrapper #shelf div::after {
  position: absolute;
  content: "";
  width: 100%;
  height: 100%;
  background-color: #79a8c5;
  bottom: -15px;
  right: -5px;
}
.wrapper #shelf ul li {
  float: left;
}
.wrapper #shelf ul .books {
  margin-left: 10px;
  position: relative;
  top: 4px;
}
.wrapper #shelf ul .books span {
  float: left;
}
.wrapper #shelf ul .books span:nth-child(1), .wrapper #shelf ul .books span:nth-child(12), .wrapper #shelf ul .books span:nth-child(4), .wrapper #shelf ul .books span:nth-child(6) {
  width: 15px;
  height: 61px;
  background-color: #eb594a;
}
.wrapper #shelf ul .books span:nth-child(4) {
  width: 8px;
  height: 84px;
}
.wrapper #shelf ul .books span:nth-child(3), .wrapper #shelf ul .books span:nth-child(7), .wrapper #shelf ul .books span:nth-child(9) {
  width: 8px;
  height: 69px;
  background-color: #f5b400;
}
.wrapper #shelf ul .books span:nth-child(9), .wrapper #shelf ul .books span:nth-child(6), .wrapper #shelf ul .books span:nth-child(5), .wrapper #shelf ul .books span:nth-child(10) {
  width: 16px;
  height: 92px;
}
.wrapper #shelf ul .books span:nth-child(8), .wrapper #shelf ul .books span:nth-child(11) {
  width: 23px;
  height: 77px;
  background-color: #fff;
}
.wrapper #shelf ul .books span:nth-child(2), .wrapper #shelf ul .books span:nth-child(5), .wrapper #shelf ul .books span:nth-child(10) {
  background-color: #0e3757;
}
.wrapper #shelf ul .books span:nth-child(2) {
  width: 24px;
  height: 77px;
}
.wrapper #shelf ul .books span:nth-child(1), .wrapper #shelf ul .books span:nth-child(12) {
  top: 31px;
}
.wrapper #shelf ul .books span:nth-child(2), .wrapper #shelf ul .books span:nth-child(8), .wrapper #shelf ul .books span:nth-child(11) {
  top: 15px;
}
.wrapper #shelf ul .books span:nth-child(3), .wrapper #shelf ul .books span:nth-child(7) {
  top: 23px;
}
.wrapper #shelf ul .books span:nth-child(4) {
  top: 8px;
}
.wrapper #shelf ul .books span:nth-child(2)::before, .wrapper #shelf ul .books span:nth-child(4)::before, .wrapper #shelf ul .books span:nth-child(5)::before, .wrapper #shelf ul .books span:nth-child(6)::before, .wrapper #shelf ul .books span:nth-child(8)::before, .wrapper #shelf ul .books span:nth-child(9)::before, .wrapper #shelf ul .books span:nth-child(10)::before, .wrapper #shelf ul .books span:nth-child(11)::before {
  content: "";
  display: block;
  position: absolute;
  width: 100%;
  height: 50px;
  top: 22px;
}
.wrapper #shelf ul .books span:nth-child(2)::before {
  background-color: #fff;
}
.wrapper #shelf ul .books span:nth-child(2) i {
  display: block;
  width: 0;
  height: 0;
  border: 7px solid transparent;
  border-bottom: 15px solid #f3b502;
  position: relative;
  left: 5px;
  top: 19px;
}
.wrapper #shelf ul .books span:nth-child(2) i::after {
  content: "";
  position: absolute;
  top: 15px;
  left: -7px;
  width: 0;
  height: 0;
  border: 7px solid transparent;
  border-top: 15px solid #f3b502;
}